Creating a differential output using a SigmaDSP with single-ended DACs

Discussion created by BrettG on Jun 19, 2012
Latest reply on Oct 22, 2013 by BrettG

I was recently asked how to create a differential output using the single-ended DACs on the ADAU1701. It is easy to do this in SigmaStudio by making a copy of the output signal and simply inverting it. In hardware, you would then need to use an AC-coupling capacitor on the DAC outputs to remove the DC offset. This could be included in the standard output filter design. An example project is attached.


ScreenHunter_01 Jun. 19 17.26.jpg